US4517378AExpiredUtility

Curing agent for fluorocarbon polymer coating compositions

67
Assignee: DU PONTPriority: Jun 30, 1983Filed: Jun 30, 1983Granted: May 14, 1985
Est. expiryJun 30, 2003(expired)· nominal 20-yr term from priority
Inventors:Joseph A. Vasta
C07C 233/45
67
PatentIndex Score
7
Cited by
32
References
5
Claims

Abstract

A curing agent for fluorocarbon polymer coating compositions selected from the following group: ##STR1## where R is R 1 NH, R 1 is an aliphatic or cycloaliphatic hydrocarbon radical, R 2 is C or an aliphatic hydrocarbon group, R 3 is H or CH 3 , where x is 3 when R 2 is a hydrocarbon group and x is 4 when R 2 is C; the curing agents form ambient curing fluorocarbon polymer coating compositions; These compositions are used to provide corrosion and abrasion resistant coatings for large structures in chemical plants, oil refineries, oil drilling platforms, and the interior of smoke stacks of large utility companies.

Claims

exact text as granted — not AI-modified
We claim: 
     
       1. A curing agent for fluorocarbon polymers consisting of ##STR4## wherein R is R 1  NH 2  and R 1  is an aliphatic or cycloaliphatic hydrocarbon radical. 
     
     
       2. The curing agent of claim 1 in which R 1  is an aliphatic hydrocarbon radical. 
     
     
       3. The curing agent of claim 2 in which R 1  is --CH 2  -- 6 . 
     
     
       4. The curing agent of claim 1 in which R 1  is a cycloaliphatic hydrocarbon radical. 
     
     
       5. The curing agent of claim 1 having the formula ##STR5##

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